(STRATEGY
    INNERMOST)

(VAR
    X XS)
(DATATYPES
    A = µX.< cons(X, X), 0, n__zeros >)
(SIGNATURES
    zeros :: [] -> A
    tail :: [A] -> A
    activate :: [A] -> A)
(RULES
    zeros() -> cons(0(),n__zeros())
    tail(cons(X,XS)) -> activate(XS)
    zeros() -> n__zeros()
    activate(n__zeros()) -> zeros()
    activate(X) -> X)